Continuity mistake: After Danny gets mad at Walter for catching the ball that his Dad threw for him, he throws his glove down on the floor and runs inside. In the next shot the glove is in a different location.

Continuity mistake: After the ball knocks the glass of juice over, the juice spills all over a drawing that the Dad needs for work. Between shots the position of the spilt juice on the drawing changes.

Continuity mistake: In the shots before Danny throws the ball which knocks the glass over, the position of items on the desk keeps changing, and a computer mouse appears next to the glass of juice between shots.

Trivia: To make the robot in the movie, first they used a small puppet and had the puppeteers under the floor controlling it through sticks. To make the huge robot, they had a "bam bot" for ramming through walls and windows, a technical robot that had all the circuitry to make the antennae move and the nose to steam,and a version where there were only the feet and the body (they would later animate the arms and legs.) The robot was more mechanics than electronics.

Question: When Danny presses the button, the red spaceship moves onto a white space. Later in the movie, after accepting the astronauts' help, all three discover that the red spaceship is now on a blue space. How could it have gotten there? Neither Danny or Walter kicked the board and Danny never actually moved it from its original position since they had to deal with getting rid of the Zorgons.

Chosen answer:If you are talking about the part where Walter says that Danny cheated and Danny says "someone must have kicked the board", you're right, no one did kick the board. After again being asked if he moved the piece, Danny says "maybe I moved the piece by accident." I think this implies that Danny cheated and moved the piece himself, which is why it was on a different coloured space.